<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>水波纹效果</title>
<style>
    *{
        margin: 0;
        padding: 0;
    }
    body{
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background-color: rgb(55, 52, 52);

    }
    .wave{
        width: 600px;
        height: 200px;
        border-radius: 50%;
    }
    .container{
        border: 3px solid darkturquoise;
        padding: 10px;
    }
    .wave{
        position: relative;
        background-color: skyblue;
    }

    .wave::before{
        content: ' ';
        position: absolute;
        top: 0;
        left: 50%;
        width: 300p;
        height: 300px;
        background-color: rgb(255,255, 255,.8);
        border-radius: 40%;
        transform: translate(-50%,-60%);

    }
    .wave::after{
        content: 'ocenaball';
        position: absolute;
        top: 30px;
        left: 50%;
        text-transform: uppercase;
        color: darkturquoise;
        font-weight: 700;
        transform: translate(-50%,0);
    
    }
    @keyframes wave {
        100%{
            transform: translate(-50%,-60%) rotate(360deg);
        }
        
    } 

</style>
</head>
<body>
    <div class="container">
        <div class="wave"></div>
    </div>
    
</body>
</html>